Jennifer L. answered 06/13/26
Writing & English Language Specialist | Grammar & Composition Tutor
The past progressive tense (also called the past continuous tense) is used to describe an action that was already in progress at a specific time in the past. It is formed with was/were + a verb ending in -ing.
For example:
I was studying at 8:00 last night.
They were playing basketball after school.
She was reading a novel all afternoon.
One of the most common uses of the past progressive is to show that an ongoing action was interrupted by another action. In these cases, the ongoing action is in the past progressive, and the interrupting action is usually in the simple past tense.
For example:
I was doing my homework when the phone rang.
We were walking to the store when it started raining.
She was sleeping when her alarm went off.
The past progressive can also describe two actions happening at the same time in the past:
While I was studying, my brother was watching TV.
They were talking while the teacher was writing on the board.
A simple way to remember the difference is that the simple past describes a completed action ("I watched a movie"), while the past progressive describes an action that was in progress ("I was watching a movie").
Think of the simple past as a photograph and the past progressive as a video clip. The simple past captures a completed event, while the past progressive shows something that was happening over a period of time.